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ipn [44]
3 years ago
12

Add. 3/x+4 + 6/x+5 also show your work thank u ♡

Mathematics
1 answer:
forsale [732]3 years ago
7 0

Answer:

hope this helped, i just took a test on this

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Please help I’m so confused 25 points and brainliest!!
il63 [147K]

Answer:

1=15.7

2:31.4

3:12.5

Step-by-step explanation:

1=5×3.14=15.71

2:5×2=10×3.14=31.42

3:39.25÷3.14=12.5

hope this helps

5 0
3 years ago
Read 2 more answers
(-30(-7))-(210(-3))=
Vlad [161]

Answer:

840

Step-by-step explanation:

(−30)(−7) − (210)(−3)

=210 − (210)(−3)

=210 − (−630)

=840

Hope this helps!

brainliest?

:)

3 0
3 years ago
Read 2 more answers
Hi can anyone help me with this ..​
aleksley [76]

Answer:

n = π/6, π/4, 3π/4, 5π/6

Step-by-step explanation:

sin(3n) − sin n = cos(2n)

Use double and triple angle formulas:

(3 sin n − 4 sin³ n) − sin n = 1 − 2 sin² n

2 sin n − 4 sin³ n = 1 − 2 sin² n

4 sin³ n − 2 sin² n − 2 sin n + 1 = 0

Factor by grouping:

2 sin² n (2 sin n − 1) − (2 sin n − 1) = 0

(2 sin² n − 1) (2 sin n − 1) = 0

Solve:

2 sin² n − 1 = 0

2 sin² n = 1

sin² n = 1/2

sin n = √2/2

n = π/4, 3π/4

2 sin n − 1 = 0

2 sin n = 1

sin n = 1/2

n = π/6, 5π/6

4 0
3 years ago
X - 7 divide by 3 = 4x divide by 5
9966 [12]

Hey here is my ans.... Catch it.... ❤️ ❤️ ❤️ Pls mark as brainliest ❤️

7 0
3 years ago
8 + 3 • 5 - 20 ÷ 4 = ?<br><br> Please use the order of operations
nalin [4]

We must multiply and divide before adding and subtracting here. Working from left to right, we get:

8 + 15 - 5 = ?

8 + 10 = ?

18 (answer)

8 0
3 years ago
Read 2 more answers
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